Muscles

Question 1

Supraspinatus
(Origin, Insertion, function)

Answer 1

O: Supraspinious fossa
I: greater tubercule
F: first 15 degrees of abduction

Question 2

Infraspinatus (O,I,F)

Answer 2

O: infraspinous fossa
I: greater tubercule
F: external rotation

Question 3

subscapularis (o,i,f)

Answer 3

o: subscapular fossa
i: lesser tubercule
f: internal rotation

Question 4

teres minor (o,i,f)

Answer 4

o: lateral superior border of scapula
i: greater tubercule
f: external rotation

Question 5

teres major (o f i)

Answer 5

o: inferior lateral border of the scapula
i : intertubercular groove
f: internal rotation

Question 6

deltoid (o i f)

Answer 6

o:
- scapular spine (posterior)
- superior acromial surface
- lateral third of the clavicle
i: greater tubercule
f: shoulder abduction

Question 7

coracobrachialis (o, i,f)

Answer 7

o: apex of the coracoid process of scapula
i: medial shaft of humerus
f: flexion & adduction of the arm and shoulder joint

Question 8

bicep brachii (o, i,f)

Answer 8

o: supraglenoid tubercule & tip of coracoid process, distal anterior humerus
i: cotonou process and ulnar tuberosity
f: flexion extension of elbow